Presenter: Carin Marzock

Time: 10:30 - 11:15
Room: Lab B
Contact: cmarzock@clsd.k12.pa.us or ghall@clsd.k12.pa.us

Description of Presentation


This presentation will outline a lesson in quadratics using geogebra and activotes. The lesson resources are below. I have provided them in various formats such that hopefully everyone will be able to view them.


Resources

Download Geogebra
Student Worksheet

Graphing Quadratic Equations Worksheet for Geogebra.docx
Word 2007
Graphing Quadratic Equations Worksheet for Geogebra PDF.pdf
Adobe PDF


Geogebra File

Quad_Int_Vertex_Form_worksheet[1].ggb
Geogebra
Quad_Int_Vertex_Form_worksheet_1_.html
HTML - Web Browser


ActivStudio File

Quadratics Solving Simple.flp
ActivStudio
Quadratics Solving Simple.htm
HTM - Web Browser


Geogebra Activities on their Wiki

http://www.geogebra.org/en/wiki/index.php/English#Geometry_2
Geogebra Wiki Site


Quadratic Simulations

http://phet.colorado.edu/simulations/sims.php?sim=projectile_motion
Simulation Website

File Request




Notes on Session

Jimbo Lamb
Download Geogebra
Geometer's Sketchpad Parabola (with sliders): parabola.gsp

There is a roundtable discussion on Geogebra and Geometer's Sketchpad later in the day.

Carin begins with the "tickertape" feature on the Promethean board for use with a walk-in activity.
Geogebra is similar to Geometer's Sketchpad, but it is a free download.

This use has begun with a quick review of what a quadratic is. She has a standard form quadratic where the students can apply a change to a, b, and c to show how the change affects the parabola, allowing the students to explore the different parts of a quadratic. This could be altered for use with other types of equations, as well (lines, cubics, etc.).

Next, we look at an interactive simulation for projectile motion. With this applet, students are trying to shoot a target with a cannon, realizing that they are moving the projectile through parabolic motion. Some student may realize that this is a version of a tanks game, where students shoot at targets with a tank. This can allow you to make a connection to math through games.

Gretchen takes over, directing us to this wikispace. She shows us some of the resources that go along with the project.

Question for Gretchen: Do you prefer Geogebra or Sketchpad? Really, they offer many of the same options. The big thing is to get comfortable with what you use. You can find files for use for either to allow for immediate use. There are tutorials for both available online. It's not about the application, but what you do with the application, and they both offer a similar approach for use.

Geogebra also offers files to access as flash files through their website. Geogebra does not need downloaded, as there is web access. If you are looking at having your students do constructions, you will want to have it downloaded.

Time is provided to session attendees to access Geogebra and play around with it.